JPH0214130Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a terminal board used as a pull-out terminal, relay terminal, etc. when wiring electrical equipment, and the terminal washer automatically rises during wiring work. It's about structure.

Prior Art Various conventional terminal boards in which terminal washers automatically rise have been proposed in which a spring is inserted between the terminal washer and the base to raise the terminal washers. For example, there is a structure that utilizes the effect that a spring inserted into a base and a terminal washer changes the direction of the force of the spring up and down at the dead center when the terminal washer moves up and down. Since the force acts in the direction of the side wall of the base, friction may occur between the terminal washer and the base, resulting in a disadvantage that the terminal washer does not move up and down smoothly.

Purpose In view of the above, the present invention provides a terminal board in which the terminal fittings can move up and down smoothly during wiring work on the terminal board, and it is easy to assemble the spring that raises the terminal washer to the base. be.

Embodiments Explained below with reference to the drawings, 1 is a base made of an insulator, 2 is a terminal board, which is placed on the mounting parts 3, 3 of the base 1, and is held between the upper and lower clamping parts 4, 5. 1 unit
Multiple pieces are stacked and fixed. Reference numeral 6 denotes a shaped terminal washer. Terminal screws 7, 7 are screwed into the upper hole 24 via spring washers 8, 8, and the legs 9, 9 bent downward are inserted into the holes 10, 10 of the terminal plate 2. penetrates through. Reference numeral 11 is a bent spring having an arcuate portion 12 at its open end, and the arcuate portion 12 fits into shaft portions 13, 13 provided in a recess 15 of the base 1. Numerals 14, 14 are locking recesses formed at the lower ends of the legs 9, 9 of the terminal washer 6, which engage and hold the closed end of the spring 11. The spring 11 is engaged with the lower surface of the terminal washer 6 to prevent it from coming off upward, and the spring 11 is guided by the shaft portion 13 and its closed end acts on the foot 9 of the terminal washer 6 to constantly move the terminal washer 6 upward. It is biased towards. The open end of the spring 11 is engaged with the bottom surface of the recess 15 of the base 1.

The closed end of the spring 11 and the locking recess 1 of the terminal washer 6
4, 14 is engaged with the spring 11 as shown in FIG.
When the dimension of the closed end of is a, and the dimension between the outer sides of the locking recess 14 of the leg 9 is b, the dimension configuration is such that a<b,
By pushing the legs 9 between the springs 11 from above,
The spring 11 is engaged with and held in the locking recesses 14, 14 to prevent it from coming off.

Next, to explain the wiring work, with the terminal washer 6 on the left side of FIG. The crimp terminal 16 is screwed into the hole 17 and fixed as shown on the right side of FIG. When removing the wiring, loosen the terminal screw 7 and remove it from the terminal board 2, and the force of the spring 11 will automatically raise the terminal washer 6. When the terminal washer 6 moves up and down, the closed end of the spring 11 moves within the locking recesses 14, 14 of the foot 9 toward the closed end of the spring 11.

5 and 6 show other embodiments of the spring used to lift the terminal washer 6. Reference numeral 18 is a spring whose side surfaces are bent into a roughly shape, and has closed ends facing each other at the top. Then, arcuate parts 19, 19, 19, 19 are formed at the lower part facing the two closed ends, and the arcuate parts 19,
19, 19, 19 are fitted and inserted into the shaft parts 13, 13 of the base 1, and the locking recesses 14, 14 of the legs 9 of the terminal washer 6 are engaged and held in the two upper closed ends. There is. A bent recess 20 is provided on one side of the lower parallel portion, and the bent recess 20 is fitted into a protrusion 21 formed on the bottom of the base 1.

7 and 8 show another embodiment of the spring for lifting the terminal washer 6, in which 22 is a spring bent into a shape, and a coiled spring portion 2 is provided between the closed end and the open end.
3, 23, and the coiled spring parts 23, 23 form the base 1.
The locking recesses 14 of the legs 9 of the terminal washer 6 engage and hold the closed end of the spring 22.

Effects of the Device As described above, in the present invention, the closed end of the spring shape used to raise the terminal washer is engaged and held in the locking recess of the foot of the terminal washer, and the closed end of the spring shape is held on the bottom surface of the terminal plate. It has a structure in which a circular arc portion provided at the lower part facing the closed end portion is fitted into the shaft portion, and has the following effects.

(1) Since the spring has a structure in which the arc part fits into the shaft of the base, the force of the spring that lifts the terminal washer is guided by the shaft and always acts upward, so that the foot of the terminal washer is connected to the terminal board and base. The terminal washer can move up and down smoothly without causing any friction on the stand.

(2) The closed end of the spring engages and holds the locking recess in the leg of the terminal washer, and when the terminal washer rises, the closed end of the spring locks on the bottom surface of the terminal plate, preventing the terminal washer from protruding. Assembling is possible by inserting the terminal board into the base and fitting and inserting the arc part of the spring into the shaft part, then inserting the foot of the terminal washer into the hole of the terminal board and closing the spring. The end portion automatically engages with the locking recess of the foot and is assembled, so it has the advantage of being easy to assemble.

[Brief explanation of drawings]

The figures show an embodiment of the terminal board according to the present invention. Fig. 1 is a side view of the terminal board, Fig. 2 is a diagram for explaining the state in which the terminal washer engages with the spring, and Fig. 3 is the terminal board. An exploded perspective view of the board, Figure 4 is a bottom view with the terminal board attached, Figure 5 is a side view of the terminal board showing another embodiment, and Figure 6 is used for the terminal board shown in Figure 5. FIG. 7 is a side view of a terminal board showing another embodiment, and FIG. 8 is a perspective view of a spring used in the terminal board shown in FIG. 7. 1 is a base, 2 is a terminal board, 6 is a terminal washer, 7 is a terminal screw, 9 is a foot, 10 is a hole, 11 is a spring, 12 is a circular arc portion, 13 is a shaft portion, 14 is a locking recess, 15 is a Recess, 18 is a spring, 19 is an arc, 22 is a spring, 2
3 is a coiled spring portion.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Insert the leg 9 of the shaped terminal washer 6 having the terminal screw 7 into the hole 10 of the terminal plate 2 installed on the base 1,
Place the spring that raises the terminal washer 6 in the recess 1 of the base 1.
In the terminal board installed in the terminal board 5, a shaft portion 13 is provided in the recess 15 of the base 1 at a position opposite to the foot 9 of the terminal washer 6, and the circular arc portion 1 is fitted into the shaft portion 13.
2 and 12 at the open end, and the closed end of the spring 11 engages and holds the locking recesses 14 and 14 formed in the legs 9 of the terminal washer 6, and the spring 11 constantly holds the terminal washer 6. The terminal board is biased upward, and when the terminal washer 6 rises, the closed end of the spring 11 is locked to the bottom surface of the terminal board 2, and the open end of the spring 11 is locked to the bottom surface of the recess 15. 2 The spring 18 used to lift the terminal washer 6 has a closed end opposite to the upper part, and has arcuate parts 19, 19, 19, 19 at the lower part opposite to the closed end.
The ends of the arc parts 19, 19 on one side are directly connected, the ends of the arc parts 19, 19 on the other side are open, and the arc parts 19, 19, 19, 19 are connected to the base 1. A utility model according to claim 1, which fits into the shaft portions 13, 13 and engages and holds the locking recesses 14, 14 of the legs 9 of the terminal washer 6 in the closed end portion of the spring 18. terminal board. 3 The spring 22 used to raise the terminal washer 6 is
A coiled spring part 23, 2 is placed between the closed end and the open end of the shape.
3, the coiled spring parts 23, 23 are fitted to the shaft part 13 of the base 1, and the locking recesses 14, 14 of the terminal washer 6 are engaged and held at the closed end of the spring 22. Terminal board according to claim 1.